On the International Space Station Sunday night, the Dextre robotic manipulator system was put through its paces as flight controllers sent commands to set up the robot to replace a Remote Power Controller Module (RPCM) on the P1 truss. Dextre grabbed onto a new RPCM from the Cargo Transport Container (CTC) of spare parts mounted on a tool caddy on the robot and will install it on the P1 truss Monday night, replacing a faulty RPCM that will be placed back inside the CTC.